Type-writing and adding machine and means for automatically operating the same.



OPERATING THE SAME. q APPLIUATIONIILED JUNE 21, 1911.

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Patented Jan. 12, 1915.

INVENTUR; 04, MW

\A/iTNESSES:

1415 ATTEJ RNEY C. B. YAW.

TYPE-WRITING AND ADDING MACHINE AND MEANS FOR AUTOMATICALLY OPERATING THE SAME.

APPLICATION FILED JUNE 21, 1911.

mm m n m ,m T R m w m N n A m M M m m A v i T m m \E I A m 4 6% 5 t H n I h 5\ W J@ AV H m G H m 0 G i 8 H MEL 5 w 7 5 r 1 5 Ir 4 4 2 N 1 n L H z 0. B. YAW. TYPE WRITING AND ADDING MACHINE AND MEANS FOR AUTOMATICALLY OPERATING THE SAME.

APPLICATION FILED JUNE 21, 1911. 1, 1 24,3780 Patented Jan. 12, 1915.

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1-li5 ATTORNEY UNITED srairns ran ornrcn.

one B. YAW, or ARLINGTON, new JERSEY, assrenon, BY MESNE REMINGTON TYPEWRITER ooMrANY, or ILIQN, NEW YORK, a

NEW YORK.

ASSIGNMENTS, TO CORPORATION 01 TYPE-WRITING AND ADDING: MACHINE AND MEANS, FOR AUTOMATICALLY OPERATING- THE SAME.

iaaaave.

Specificatioriof Letters Patent.

Patented Jan. is,- rare.

Application filed rune 2.1, 1911. Serial No. 634,475.

To (ZZZ whom it may concern Be it known that 1, C110 B. Yaw, citizen of the United States, and resident of Arlington, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Type-Writing and Adding Machines and Means for Automatically Operating the Same, of which the following is a specification. a

My invention relates chiefly to mechanism for automatically operatingv a key-board strument, said instrument in the present instance being a combined typewriting and adding machine.

The principal object of the invention 1s to provide a motor-driven machine for operating a combined typewriting and adding machine for display or exhibition or advertising purposes, to illustrate to the public the mode of operation of the machine, and the results obtained by such operation. The invention, or parts of the invention, are applicable 'or adaptable, however, to the operation of other machines than the precise one here illustrated, and some of the featIlI'QSQI tlIG invention are capable of application to machines that are not automatically operated.

My invention consists in certain features of construction and combinations and arrangern'ents of parts, all of which will be fully set forth herein and particularly pointed out in the claims.

One embodiment of my invention is illustratedin the accompanying drawings in which- Figure 1 is a righthand side elevation, with parts in section and parts broken away and parts omitted, of a combined typewriting and adding machine mounted on and connected with a machine for automatically operating said combined typewriting and adding machine. Fig. 2 is a front elevation of the same. Fig. 3 is a left-hand side elevation of part of the computing attachment and some of the associated mechanism. Fig. 4 is a fragmentary isometric view of a portion of a certain shifting device. Figs. 5 and 6 are fragmentary top views bf details. Fig. 7 is a right-hand side-elevation of the operating machine with the typewriter mounted on it, said operating machine being shown in section a little inside of the right-hand frame-posts. This figure and Fig. 1 together constitute a right-hand side elevation of the entire mechanism, partly in section. Fig. 8 is a view in horizontal section and looking downward, the

section being taken on about the line mw" the left by a spring drum and strap, not

shown. The. 'step-by-step motion of said carriage is controlled by meansincluding a feed rack 7 meshing with-a pinion 8 which is connected with a pair of escapement wheels 10, said escapement wheels being controlled by a dog pivoted on a dog rocker 11, which in turn is provided with a stationary p1vot12 and is operated by a link 13 con nected with an arm 14 projecting from a rock shaft 15 in the base 1 of the typewriter. Said rock shaft has at each end thereof an arm projecting toward the rear of the machine and supporting a link 16, which link supports a universal bar '17. Said universal bar lies beneath a series of printing key levers 18 which at-theirrear ends are pivoted oh a flange 20 and which at their forward ends carry printing keys 21. Each of said key levers is connected by a link 22 with 'a lever 23 which is connected by a link 24 with a type bar 25 having one-or more types 25 on its free end. The series of type bars are pivoted on a segment 26 secured to the underside of the top plate 3, and the type-bare are arranged to strike upward and toward the rear against the front face of a roller platen27 which is mounted g meters by its shaft 28 in the carriage 6. In the Remington machine said platen is mounted in a platen frame 30 which is adapted to be shifted up and down on links 31 for upper and lower case writing, this motion being limited by stop screws 32. As the present machine is intended only for writing numhers I have removed the mechanism for shifting the platen up and down and have screwed the upper stop 32 down so as to hold the shaft 28in its lower position. This, of course, is not necessary, however.

The right-hand end of the platen carries a line space wheel 33 which is adapted to be engaged by a pawl 34 pivoted at 35 on an arm 36, the lower end of which is pivoted concentrically with the axle 28. The pawl 34 is operated by a link 37 which is pivoted tosaid pawl at 38 somewhat below the pivot 35. Theforwardend of the link 37 is pivoted to the vertical arm 40 of a bell-crank which has also a rearwardly extending arm 41, said bell-crank being pivoted at 42 to the carriage 6. The arm 41 is connected by a link. 43 with an arm 44 projecting from a horizontal rock shaft 45 which is journaled in a housing 46 on the carriage 6. The shaft 45 extends toward the front bf the machine and its forward end is bent downward forming a handle 47.. In the Remington machine the pawl 34 normally stands in the dotted line position shown in Fig. 1; that is to say, the arm 36 is normally inclined toward the front of the machine and the pawl stands out away from the wheel 33. When the handle 47 is pushed toward the right the link 43 is pushed downward and it have modified this wheel, making it with four series of four teeth each, each series consisting of three short or narrow teeth 50 and one wider tooth 51.

TheRemington machine is provided at the rear of the carriage with a paper table 52 suitably supported on the platen frame 30 and operating to support the loose part- .of the paper at the rear of the platen. Said machine is also provided with suitable feed rolls and other paper feeding and guiding devices which areused in the present machine but which, being of ordinary and well-known c'onstruction, ll have not thought it necessary to illustrate. I

An ink ribbon 53'is mounted on ribbon spools 54 which in turn are mounted on horizontal shafts 55 journaled in the framework of the machine. These ribbon spools are driven by the spring drum that moves the carriage but as the ribbon feed mechanism is of the ordinary construction, I have not illustrated it herein. The spools are dis posed one oneach side of the machine and the ribbon is guided from one to the other by means which include a ribbon vibrator 56 which, as indicated in Fig. 1, normally stands below the printing line but which is adapted to be thrown upward to cover the printing point at each actuation of a printing key! The means for thus operating the vibrator includes a link 57 which at its lower end is connected with an arm 58 projecting from the rock shaft 15 of the universal bar 1.7- of the machine. I have not illustrated the mechanism ,between this link and the vibrator: but said mechanism is or may be like that fully shown and described in my Patent No. 920,410, dated May4, 1909. Part of this intermediate mechanism is mounted on a rail or cross bar 60 which in the regular Remington machine constitutes part of the platen shift mechanism. As l do not shift the platen in the present instance, I have removed this bar 60 from its usual supports and have secured it to the rear face of the type bar segment 26 in the same position. that it would occupy in the ordinary machine when the platen is in the lower case position. It will of course be understood that this change in the mechanism of the typewriter is not at all essential but has been made here solely for the purposes convenience.

The ink ribbon 53 is a bi color ribbon having an upperstripe a with black or blue ink and a lower stripe 6 preferably of ma, The vibrator mechanism includes means for changing the-extent of throw imparted to the vibrator 56 at each key stroke, a short of simplicity and in blue or black and a longer stroke to write in red. The mechanism whereby this change in the operation of the vibrator is i brought about is fully set forth in my pri br patent above referred to. Said mechanism includes a rock shaft 61 (Figs. 1 and 2) which at its rear end is pivoted in a bracket of the main frame and at its forward end is pivoted in a bracket 62 secured to the lefthand front post 2. The forward end of the stroke-being given to the vibrator to write shaft 61 has fixed thereon a'milled head 63 I mark 66 the mechanism is set to write from the lower stripe of the ribbon.

The Wahl adding attachment includes an actuator 67 and a carriage 68 on which latter may be mounted one or more adding heads 70, one such adding head being here shown. Said actuatoris suitably secured to the fore-part of the main frame of the typewriter and it includes a rock shaft 71 having rigidly mounted thereon a series of arms 72 set at various angles and each having a pin or a roller adapted to coiiperate with a cam controlled by one of a series of levers 73. The several levers 73 are operated by links 74 which at their lower ends are connected with the key levers 18 of the numeral keys of the machine. When any of these numeral keys is depressed the shaft 71 is operated to an appropriate extent and it operates a master wheel, which in turn opcrates the register wheels 75 which show in Fig. 2 through a suitable slot in the front face of the adding head 70. All of this mechanism is well known in the art and I have not here shown it in detail. The mechanism includes, however, means for setting the machine so as to change the character of the arithmetical operations performed. said means in the Wahl machine being adapted to cause the number written on the typewriter to be either added or subtracted .as desired. Said means includes a rod or bar 76, Figs. 2 and 3, which, when moved toward the right in Fig. 2, sets the machine 'for addition and when moved toward theleft setsthe machine for subtraction. In the ordinary use of the Wahl adding machine itis customar to add a. column of figures and then to s t this bar toward the left before writing the total, thus causing the total as it is'written to be subtracted out of the adding machine, leaving the register wheels at zero. The carriage 68 is mounted in part on a stationary bar or bracket 77 which is supported by brackets 78 from the top plate 3 of the typewriter, said carriage being supported and ided by means which I have not here fully shown .but which include certain rollers or wheels 80. The carriage 68 is also supported in part by arms 81 projecting one from each end thereof, said.

arms being connected by screw and slot connections 82 with arms 83 secured to the typewriter carriage 6.

The operating machine hasa frame which comprises four corner posts 84 and a .top 85 secured to said posts by bolts 86. The mechanism is situated beneath said top\ 85 and the typewriter is mounted on said top as shown in Figs. 1, 2 and 7. Said top is provided with short posts 87 which fit into the socketsordinarily occupied by the rubber feet of the typewriter and thus locate the typewriter on said to vThe typewriter is fastened to the operatlng machine by means of bolts 88. The mechanism may be concealed by shields 90 of sheet metal, each extending from oneof the posts 84, to an- The machine is operated by a motor,

here shown as an electric motor, 94 connected bywires 95 with any suitable source of power, such for example, as an ordinary electric light circuit. This motor is supported on a plate 96 which is secured by screwsv 97 to cross pieces 98 which in turn are suitably supported by two bars 100, one of which connects the two front legs and the other the two rear legs of the stand or frame. The shaft 101 of the motor has a worm 102 at one end, said worm operating a large worm wheel 103 which is mounted on the lower end of a vertical shaft 104 which at its upper end carries a bevel pinion 105. Said shaft 101 is journaled in a housing 106 secured to one of the cross bars 98, said housing being suitably elongated to provide a sufficiently long bearing for the shaft. The pinion 10?)- meshes with a bevel gear 107 mounted on a transverse horizon tal-shaft 108 which may not improperly be referred to as the main shaft of the ma- 1 chine. It will be seen that this main shaft is driven at a much lower speed than the motor shaft. The shaft 108 may be jOUI". naled in any suitable wav but as here shown it is formed at its ends with recesses 109 Endwise motion of the T The shaft 108 carries a series of cam disks or wheels which operate the various parts of the typewriter and adding machine. Beginning at the left-hand end of said shaft there is a cam wheel A which furnishes the powerto operate the key levers 18 of the typewriter and controls the de-,'

vices that operate said key levers. Next along the shaft comes the bevel gear 107 and next to that is a cam wheel B which operates the color controlling shaft 61 of the typewriter and the adding and subtracting rod 76 of the adding machine. Following the wheel B are ten selector cam wheels '0 which control certain devices for selecting the particular numeral key lever 18 to be operated. The last cam wheel D effects the restoration of the typewriter carriage 6, to the right to begin a new line and the operation of the line spacing mechanism. These several cam wheels can be connected to the shaft 108 in any suitable manner. As here shown said shaft is threaded throughout the greater part of its length and the cam wheels are spaced apart by a series of nuts 114 threaded onto the shaft and clamped one after another against the several cam wheelsf One of these nuts 115 at the left of the wheel107 is shown in Fig. 8 partly rounded but with two flat faces for cooperation with a wrench. Each of the numeral key levers 18 has pivoted thereto at 116 a depending link, coupler or connecting device 117 which is controlled in part by a contractile spring 118 connecting said link with the key lever 18 and tending to swing the lower end of the link toward the rear of the machine. The links 117 pass down through a suitable opening or suitable openings in the top 85, and eachof them terminates in contact with the front edge of one of the cam wheels U,

As shown in Fig. 7 the lower end of each of the links 117 is made of peculiar form and for this reason it is convenient to make said lower end as a separate piece 120 secured to the main part of the link 117 by rivets 121. Said end 120 has a nose 122 that rests against the edge of the wheel C and said nose has an abrupt face 123 above and an inclined face 124 below. In order to insure. proper cooperation between the link and the wheel said link is provided with two ears or arms 125 which embrace the cam wheel to prevent lateraldisplacement of the link. The nose 122 is pressed against the periphery of the wheel C by means of the spring 118. The part 120 is formed with a slot 126 opening upward and included'between the main body of said part 120 and a branch 127 of said part. Each of thewheels C has a circular periphery except that at intervals said disks are formed with notches 128 each having an inclined side 130. As the shaft 108 slowly revolves the noses 122 of the links 117 are all held at a uniform distance from the axis of the shaft 108 until one of these notches 128 reaches one 'of said noses, when said nose drops into thenotch, thus allowing the link to move a short distance toward the rear of the machine. This rearward motion'of. the link brings the upper end of the branch 127 of that particular link directly beneath a reciprocatory operating device.

, here shown as a bar 131 which extends across the entire series of linksand which is 'alug ,132, which arms are rigidly mounted on a rock shaft 133 at the rear of the machine. The notches 128 are'so disposed that no two of them lie in the same element of the cylinder that includes the peripheries of the wheels C so that the links are brought into cooperative relation with the bar 131 only one at a time. Means are provided for drawing said bar 131 downward each time that any link 117 is allowed to drop back by reason of one of the notches 128. The downward motion of the bar 131 pulls down on the link 117 and operates the corresponding key lever 18 and the printing and adding mechanism connected with said key lever. The operation of said lever not only prints the number and adds it but also operates the universal bar 17 and the dog rocker 11 and allows the typewriter car: riage to step one space to the left.

The shaft 133 is controlled by the cam wheel A, the outline of which is clearly shown in Fig. 7. The periphery of this wheel is circular except that it is formed with several series of notches 134, said series of notches being separated by smooth parts 135. Said wheel controls a follower 136, Figs. 7 and ,8, which is rigidly mounted on an arm 137 to which it is secured in an off-set position by means of bolts 138. In order to provide for adjustment, the arm 137 is loosely mounted on the shaft 133'in the manner best shown in Figs. 8 and 9.

ample by pins 142, the arm 137 being mounted between the branches 141. The arm 140 is also formed with two branches 143, Fig. 9, one abovethe other, the arm 137 passing also between these two branches. Each of the branches 143 has an adjusting screw 144 threaded through it and engaging the arm 137 one above and the other below said arm. The construction is such that thearm 137 can be adjusted with relation to the shaft, or rather thesh'aft can be adjusted with llililtlon to the arm, by means of the screws A spring 145, Fig. 7, is securedat one end to a fixed part and at the other end to the frame that includes the shaft 133. As here shown, said spring is secured at one end to end to the fixed framework'by means which include a thumb-nut 147, for regulating the tension of the spring. The tension of said spring is-exerted to press the follower 136 toward the wheel A. When the follower .136 is on the periphery of the wheel as shown in Fig. 7, the bar 131 stands above the open ends of the slots 126; but when the follower drops into one of the notches 134 the bar 131, is drawn downward by the 146 of the arm 140 and at the otheron top by the arm 143. I have found this construction quite efl'ective in reducing the noise. The adding head shown in the present case has six register wheels, and each of the series of notches 134 is here shown as consisting of six of said notches, and four' series of notches are provided. It will, of course, be understood that these numbers can be varied. The machine shown 1s adapted to write and add three numbers of six digits each-and then to write the total, and to subtract it out from the register after the ordinary fashion of the operation of the VVahl adding attachment.

The smooth parts 135 of the wheel A give time for the return of the typewriter carriage and the spacing of the paper to write a new line. The return of .the, typewriter carriage is effected by the wheel D, the outline of which is shown in Fig. 7. It will be seen that this wheel is formed with four inclined cam parts 148 each of which terminates in a high part or drop 149. The follower for this cam consists of a rollerv 150 mounted ona lever 151pivoted at 152 to a bracket 153 depending from the top 85. As shown in Fig. 8 the lever 151 consists of two parallel pieces secured together in any suitable fashion at 154 and having the roller 150 between them. The lever 151 isacted .upon by two springs 155 secured thereto at 156 and also suitably connected with the sta-' tionary framework. As here shown this connection comprises a threaded rod 157 with a hole that is hooked over a stationary pin,158. The construction is such that the tension on each of these. springs can be regulated by loosening the rod 157 from the pin 158 and screwing it into or out of the spring, the coils of which occupy the spaces between the thread of the rod. The free end of the lever 151 has pivoted thereto at 160 the lower end of a link or connecting rod 161 which is so constructed at 162 as to be adjustable to regulate its length. The

rod 161 passes upward through the mechanism of the typewriting machine, as shown in Figs. 1 and 2, being pivoted at its upper end at 163'to the horizontal arm 164 of a bell crank which also has a vertical arm 165, said bell crank being pivoted at 166 to a bracket 167 secured as by screws 168, Fig. 1, to the top plate 3 of the typewriter. The platen frame of the typewriter comprises a transverse horizontal bar 170, Figs. 1, 2 and into operation when the 5, and the arm 165 lies just in front of this bar and just to the left of a pin 171 projecting forward from the bar. The construction is such that when the link 161 is pulled downward the arm 165 moves toward the right against the pin 171, thus returning the typewriter carriage toward the right to begin a new line of writing.

In order to prevent accidental displacemerit of the arm 165, which would move it out of cotiperative relation with the pin 171, a guard plate 172 is secured to the front face ofthe bar 170, as shown in Fig. 5, this plate being so disposed as to leave between the plate and the bar 170 a slot 173 of such length as to permit of the necessary relative motion between the arm 165 and the carriage. In Fig. 7 it will be noted that the follower 136 is on one of the smooth parts 135 of the wheel A and that the follower 150 has just dropped off of one of the high parts 149 of the wheel D. When said follower reaches the drop in this wheel the lever 151 is drawn down by the spring 155, thus operating the link 161 and. lever 164, 165 and drawing thetypewriting carriage back to begin a new line. The carriage will of course, be fed toward the left step-bystep as the follower 136 drops into the successive notches 134. This step-by-step motion is permitted by reason of the fact that the inclined part 148 of the wheel D, raises the lever 151 and moves the arm 165 toward the left faster than the typewriter carriage is moved toward the left, so that said arm keeps out of the way of'the pin 171 during the traverse of the carriage.

The Remington carriage is provided with margin stop mechanism, a part of which is shown inFig. 6. v Sa id mechanism includes an adjustable margin stop 174 which co-' operates with a stop 175 on the stationary framework. This stop 174 can be adjusted so as to positively arrest the carriage at the a proper letter space position to begin the writing of a new number. The machine is also equipped with a somewhat similar stop to limlt the travel of the carriage toward the left and if desired, this stop may also be adjusted to a suitable position to come last digit of the added number has been written.

When the carriage is drawn back toward the right by the mechanism above described, it is necessary to rotate the platen 27 to a' suitable extent to space the paper for the next succeeding line of writing. This line spacing operation is effected automatically by the return motion of the carriage toward the right. A cam plate 176 is secured by screws 177 to the top plate 3, said cam plate having its upper edge inclined as shown in Fig. 2. A lever arm 178 is secured to the bell crank 40, 41 of the line spacing mechanism, as forexample by rivets 180.

This arm is adapted, when the carriage is drawn toward the right, to ride up the inclmed upperedge of the plate 176 and thus to rock the lever arm 40toward the rear of the machine, thus through the link 37, causing the pawl 34 to cooperate with the line space wheel 33 to turn the platen.

The present machine is arranged to write four numbers, that is to say, three numbers to be added and then the sum of those three numbers.- It is desirable that said four numbers be line spaced uniformly and that the next succeeding line space be longer so as to separate the written from the next column of figures. It is for this reason that the wheel 33 is formed with four groups of teeth, each group consisting. of three teeth 50 spaced a suitable distance for the numbers of any given column and the fourth tooth 51 wider than the other so as to leave an additional space between the columns. In Fig. 1 the pawl 34 has just moved up one of the wide teeth. In this figure and in all the other figures the parts are shown in the position they occupy after having completed a column of figures, the mechanism being set to begin a new column. It will be noted that the dotted line position of the pawl 34 is low enough to engage one of the long teeth of the ratchet wheel but not low enough to catch the second one of two successive short teeth. The pawl thus feeds the ratchet wheel one tooth at each operation, the distance the platen is turned depending'on the width of that particular tooth.

I have provided means for writing the items to be added in blue or black and the totals in red. I have also providedmeans for automatically setting the adding machine Ito add the said items andto subtract out the totals. These things being a part of the ordinary operation of the Wahl machine it .is desirable to exhibit them in the present case. The change from add to subtract and vice versa and the change ofcolor, are effected by the cam wheel B, the outline of which can be seen in Fig; 7. It will be noted that this wheel for about three-quarters of its periphery is circular in outline and that the remaining quarter is also circular but of less radius, the two parts being separated by inclines 181. This wheel controls a follower consisting of a roller 182 mounted on v a lever arm 183 which is secured at 184 to the end of a rock shaft 185 and is journaled at its ends in the same brackets 186 that support the shaft 133. A spring 187 coiled about the shaft-185, is connected atone end to one of said brackets and at the other end 7 to a collar 188 secured by a set screw 189 to the shaft 185. The tension of said spring is exerted to press the follower. 182 against the wheel B and'the tension of said spring can be regulated by loosening the set screw column of figures just pulls the rod 76'toward machine for subtraction.

189 and turning the collar on the shaft and then tightening the set screw. At its free the follower 182 is on the high part of the wheel B, the link 191 is held in its upper position and the machine is set to print in blue or black, and when the follower is on the low part of the wheel the link is pulled down by the spring 187 and sets the shaft 61 to print in red. The wheel B is adjusted on the shaft 108 so as to print the three items in blue or black and the total in red.

In order thatthe items may be added and the totals subtracted, connections are provided from the shaft 61 to the bar 76., the adjustment of which determines whether the adding machine is set for addition or subtraction. An arm 194 projects toward the right from the shaft 61 and said arm is connected with a link 195 which at its upper end is connected with an arm 196 of a platelike lever 197 which. is pivoted at 198 to the end plate of the actuator 67 of the adding machine. The plate 197 is formed with a concentric slot 200 through which passes a screw 201 to hold said platesnugly against the end plate of the actuator and also to limit the extent of oscillation of said plate. As best shown in Fig. .4, the plate 197 has formed on its upper end a flange 202 of cylindrical form, and in said flange is an inclined slot203 having at one end a dwell 204 and at the other end a dwell 205. A pin 206 projects into this slot from the rod 76. The construction is such that when the shaft 61 is set to print in blue or black, the upper part of the plate 197 occupies its rearmost position as shown in Fig. 3, so that the pin 206 is in the forward dwell 205 and the rod 76 is thus compelled to occupy its righthand position, in which position the adding machine is .set for addition. When the shaft I 61 is rockedbya downward motion of the link 191, the link 195 is moved upward, forcpin 206 occupies the dwell 205. This motion the left and sets the In order to indicate whether the machine is set for addition or for subtraction and in order to call attention to the operation of the machine, I have mounted on the front of it an index 207 having a finger 208 that points to the. sight-opening in the adding head 70. In the Wahl machine this sightopening and the numerals disclosed at it, are small and might, at least temporarily, es-' cape observation unless attention was directed to them. The index 207 consistsof a sight-opening 213 sheet metal plate cut out in imitation of the shape of a human hand and with a part 210 that represents a mans cuff. This index is preferably of a color that contrasts with the I coloring of the-machinery so as'to attract attention. The index is preferably mounted on the adding machine carriage 68 by means of a post or posts 211, Fig.3, projecting from said carriage toward the front of the machine. In order to display the fact that the adding machine'is some-times adding and sometimes subtracting, an indicator 212 is provided having on it the words Subtracts and Adds these words being adapted to show one at a time through a formed in the cuff part 210 of the indicator. Said indicator consists of a plate of sheet metal mounted on the back of the index 207 with freedom to slide up and down. To this 'end said plate is formed with two vertical slots 214 through which pass headed screws 215 threaded into the index 207. The plate 212 extends a little below the plate 207 and is formed with a rearwardly extending arm 216, Fig. 3, the

bottom of which is elongated in a right and left direction as shown in Fig. 2. This elongated arm rests on an ear 217 bent off from an arm 218 which is secured to and oscillates with-the plate 197. The construc tion is such that when the parts are set for .addition the word Adds shows through the sight-opening 213 and when the parts are set for subtraction the word Subtracts shows through the same opening. I have imprinted on the index 207 the word It above, and the word Here below the opening 213, so that when the machine is adding the words It addshere are displayed and when the machineis subtracting the words It subtracts here are displayed. The elongated lower part of the arm 216 enables the said arm to slide back and forth with the motion of the adding machine carriage without escaping fromthe arm 218. I prefer to mount another index bearing the legend It prints here and having its finger pointing at the writing line; this second index being merely fixed in any suitable way to the typewriter carriage. As said second index does not involveany mechanical features of especial interest or novelty, it has not been shown in'the drawing.

A machine of this character is best adapted for writing on a webof paper mounted on the machine in the form of a roll. I accordingly mount a roll of paper 220 on a drum 221 having a spindle 222 journaled at its ends in arms 223 secured to the base part 1 of the typewriter frame by screws 224, the arms being curved rearward and upward and resting on the flat shelf at the back of the typewriter frame. The-.two arms 223 may 'be connected by one br more rods 225 and provision may be made in any suitable way for inserting a new roll of paper. For example, the arms 223 may be made of sheet metal and capable of being sprung apart to free the ends of the rod 222 to remove the old roll and sprung over said rod again to insert a new roll. I have provided a sort of trough 226' which is secured to the;paper table 52 by means ofstaples 227, the ends of which pass through holes in said paper table and are secured in place by nuts 228. This trough as here shown ha's itsright and left-hand 5 edges bent up to form guides for the paper. This trough'extends' as shown in Fig. l backward to a" point in the rear of the rear edge of the top plate 3. Said trough guides the paper accurately to the printing line and also'prevents the paper from rubbing over the rear edge of the top plate. paper is led from the roll upward to the rear end of the trough 226, down through said trough beneath the staples 227 and around the platen and back again over the trough 226, the free end of the paper being allowed to fall down behind the machine.

In, operation the motor is run continuously, thus giving a continuous motion to the shaft 108 and to the cam wheels mounted thereon. The several cam wheels are timed to act in harmony, that is-to say, to cause their respective followers to act at the right relative time to cooperate to produce the desired operation. of the typewriter and computer. The notches 128 in the disks C are so disposed that one or another of thenoses 122 drops into one of said'notches just before the follower 136 drops into one of the notches 134in the wheel A.- When said follower 136 drops into a notch 134 the bar 131 is drawn down by the spring 145 and said bar strikes on the top of the branch 127 of one of the links 117, depressing said link and operating the corresponding typewriter key. Near the bottom of the stroke of said link the inclined edge 124 of the nose \122 engages the incline 130 of the notch 128 and said nose is thereby cammed toward the front of the machine, moving the branch 127 out from under the bar 131 and releasing the key which is allowedto return immediately to normal position. In the interval between such release of the key. and the next operation of the bar' 131, the follower 136 rides up the'inclined side of the notch 134, thus again elevating the bar 131. Meanwhile some other notch 128 the noses 122 and the, operation is repeated until one of the numbers has been written and added. Thereafter the follower 136 rides up on one of the smooth parts 135 of the wheel A. The follower 150 drops off of one of the high points 149 of the wheel D and restores the carriage andline spaces the paper. These operations are repeated until the three items The reaches one of h to be added have been written at the end of which time the follower 182 drops onto the low part of the wheel D and sets the machine for subtraction and for writing in red and changes the indicator to show that the machine has been set for subtraction. The notches 128 are so dis-posed as to first write three numbers and then the correct total of said numbers. The problem and the answer are thus worked out in the wheels C.

An electric motor geared so high with reference to the shaft 108 as it is here shown, will of course move said shaft with considerable power and in case of anything going wrong with the mechanism the typewriting and adding mechanisms would be injured if said mechanisms were connected positively with the shaft. It will'be noted that all of the typewriter'parts are operated by springs except that the shaft 61 is rocked positively in one direction. The keys are depressed by the spring 1&5 and the carriage is returned by the springs 155. By this con-' struction if the parts became blocked in any way there would be no more force applied to them than that due to the tension of said springs. -Moreover, the keys are all actuated with the same degree of force, which can be regulated by adjusting the nut 147. Moreover, the spring action gives a better operation to the key levers than a more positive action.

Various changes may be made without departing from the spirit and scope of my invention. I p

What I claim as new and desire to secure by Letters Patent, is

,1. In a machine of the class described, the combination with a series of finger keys, of a series of selector wheels, one for each key, couplers connected to said keys andcontrolled by said selectors, a reciprocatory bar arranged to operate the selected coupler, a controller wheel for actuating said bar, and means for moving said controller wheel and said selector wheels continuously in. unison.

2. In a machine of the class described, the combination with a series of finger keys, of links connected with said keys, a reciprocatory bar for operating said links, continuously movable selectors for of links connected with said keys, a series of selector wheels arranged to hold said links normally in inoperative position formed with means for allowing said hnks normally holding said links out of the path of said bar proper sequence.

to drop one at a time to operative position, means for operating the link that is moved to operative position, and means for rotating said wheels.

4. In a machine of the, class described, the combination of a key, a link connected I with said key, a bar for operating said link,

I the bar.

5. In a power operated machine for operating, a key-board instrument, the combination with the keys of said instrument, of operating connections for said keys, a recip: rocatory bar foroperating said connections, means for moving said connections one at a time into position to be operated by said bar, a sp'ringfor giving the operative stroke to said bar, and power operated means for restoring said bar to normal position and putting said spring under tension.

6. In a power operated machine for operating a key-board instrument, the combination with the keys of said instrument, of

operating connections for said keys, a reciprocatory bar for operating said connections, means for moving said connections one at a time into position to be operated by said bar, a spring for giving the operative stroke to said bar, and a power driven cam-wheel for restoring said bar to normal position against the tension of said spring.

7, In a machine of the class described, the combination of a typewriting machine having printing keys and a carriage, a series of selectors for: said keys arranged to select said keys in a predetermined order, means for operating the selected keys, a controller 7 for said operating means, means for returning the typewriter carriage to begin a new line, a controller for said carriage returning means, and means for moving said controllers and said selectors continuously in unison, said controllers and selectors being timedto perform their several functions in 8. In a machine of the class described, the combination of a typewriting machine having printing keys and a carriage, of a series of selectors for said keys arranged to select said keys in a predetermined order, means for operating the selected keys, a

controller for said opera-ting means, means for returning the typewriter carriage to beg n anew l1ne, a controller for said carriagereturning means, and means for. moving said controllers and said selectors continuously in unison, said controllers and 3619C? tors being timed to perform their several functions in proper sequence, the first mentloned controller consisting of a wheel having a series of notches close together for operating the keys to write a line and a smooth part for holding the said key operating means stationary during the return of the carriage. l

9. In a machine of the class described, the combination with a typewriting machine having printing keys and means for printing in different colors, of means for automatically operating the keys of said typewriter, means for changing the color of the printing to write a predetermined part of the written matter in a distinctive color, and a motor and connections for continuously moving said operating means and said color changing means in unison.

10. In a machine of the class described, the combination of typewriting mechanism including types and a traveling carriage, of a machine for automatically operating said typewriting mechanism, said machine having means for automatically operating said types in predetermined order, a cam wheel, a follower for said cam wheel, and a lever operated by said follower and adapted to return said carriage to begin a new line of writing, said lever and follower being controlled by a spring that returns the carriage and which is put under tension by said cam wheel.

11. In a machine of the class described, the combination with a typewriting machine having printing keys, a carriage and ribbon mechanism changeable to vary the color of the printing, of a machine for automatically operating said typewriting machine, sa1d operating machine having a series of cams, certain of said cams being arranged to select the keys to be operated, means operated by another of said cams for operating the selected keys, means operated by another of said cams for returning the typewriter carriage, means operated by another of said cams for changing said ribbon mechanism, and means for vdriving said cams.

12. The combination with the types and carriage of a typewriting'machine, of means for operating said types, said means including links, cam disks for controllmg sald links, each of said disks having notches therein into which a part of the associated link drops, means for operating any link that has dropped into one of said notches, said notches and links being so formed that when one of said links is operated it is cammed out of the notch and freed from said operating means.

13. The combination with the types and carriage of a typewriting machine, of a shaft having a series of disks or wheels thereon, links connected with said types and pressed against said wheels, a reciprocatory bar for operating said links, said links be ing normally held by said Wheels out of the path of said bar and said wheels having notches to permit the links to drop into the path of said bar and said notches formed to cam the links at the end of the operating strokes thereof out'of the path of said bar whereby said links can return to normal position independently of said bar.

14. In a machine of the class described, the combination of a key-board instrument, a series of connecting devices for operating the keys of said instrument, a reciprocatory bar for operating said connecting devices, means for moving said devices under said bar as required, a cam for operating said bar, a follower for said cam, an arm on which said follower is mounted, a second arm rigidly connected with said bar and having two branches, and set screws in said branches for adjusting said first mentioned arm with relation to said rigidly connected arm.

15. The combination of printing instrumentalities, a series of connections for operating said printing instrumentalities, a reciprocatory bar for operating said connections, means for moving said connections selectively into position to be" operated by said bar, a spring for giving an operative stroke to said bar, and power operated means for restoring said bar to normal position and putting said spring under tension.

16. The combination with a typewriting machine having keys, of an operating machine comprising means for operating certain of said keys in predetermined order over and over again, said means comprising a series of selectable connections each extending to one. of said keys, a rotary cam shaft having a series of cams thereon for ontrolling said connections, and means for operating said connections.

17. The combination with a typewriting machine having keys, printing instrumentalities and a carriage, of an operating machine for operating said keys, printing in-- strumentalities and carriage through a recurring cycle of operations, said operating comprisinga series of selectable connectors and State of New York, this 20th day of appropriately extending to said typewriter June A. D. 1911.

parts and a rotary cam shaft havin a series of cams thereon for controlling said CLIO 5 connections. Witnesses:

Signed at the borough of Manhattan, city CHARLES E. SMITH,

of New York, in the countv of New York E. M. WELLS. 

